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rseng-numerical-accuracy

Covers floating-point correctness in research code: why 0.1 + 0.2 != 0.3, choosing absolute vs relative tolerances in tests, accumulation error and safe summation, precision choices (float32 vs float64), catastrophic cancellation, NaN and infinity handling, and cross-platform or cross-library result drift. Use PROACTIVELY when floating-point comparisons fail mysteriously, when writing numerical tests or choosing tolerances, when results differ across machines, compilers, BLAS builds or library versions, or when precision or numerical stability questions arise in analysis or simulation code.

模型生成摘要(rules/v1 · 2026-11-15 13:04):Covers floating-point correctness in research code: why 0
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